53212171 has 2 divisors, whose sum is σ = 53212172. Its totient is φ = 53212170.

The previous prime is 53212147. The next prime is 53212183. The reversal of 53212171 is 17121235.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53212171 - 2⁵ = 53212139 is a prime.

It is not a weakly prime, because it can be changed into another prime (53272171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606085 + 26606086.

It is an arithmetic number, because the mean of its divisors is an integer number (26606086).

Almost surely, 2^53212171 is an apocalyptic number.

53212171 is a deficient number, since it is larger than the sum of its proper divisors (1).

53212171 is an equidigital number, since it uses as much as digits as its factorization.

53212171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 53212171 is about 7294.6672987875. The cubic root of 53212171 is about 376.1291501223.

The spelling of 53212171 in words is "fifty-three million, two hundred twelve thousand, one hundred seventy-one".